Table 2.1 shows the masses of some of the ions in a $$$1000 \mathrm{~cm}^{3}$$$ sample of river water. Table 2.1 Give a test for sodium ions. test ......................................................................................................................................... observations ..........................................................................................................................

Chemistry

IGCSE&ALevel

CAIE

Exam No：0620_m24_qp_32 Year：2024 Question No：2(b)

Answer:

12.5.1.1.

12.5.1.2. chloride

12.5.1.3. nitrate

12.5.1.4. sulfate

12.5.1.5. sulfite,

12.5.2.1. aluminium

12.5.2.2. aluminium

12.5.2.3. calcium

12.5.2.4. chromium(III)

12.5.2.5. copper(II)

12.5.2.6. iron(II),

12.5.2.7. iron(III)

12.5.2.8. zinc

12.5.3.1. ammonia

12.5.3.2. carbon dioxide

12.5.3.3. chlorine

12.5.3.4. hydrogen

12.5.3.5. oxygen

12.5.3.6. sulfur dioxide

12.5.4.1. lithium

12.5.4.2. sodium

12.5.4.3. potassium

12.5.4.4. calcium

12.5.4.5. barium

12.5.4.6. copper(II)

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